Engineering

Tensión Mecánica

Definición

La tensión mecánica es la fuerza interna por unidad de área dentro de un material resultante de fuerzas externas aplicadas, medida en pascales (Pa) o libras por pulgada cuadrada (psi).

Explicación

A 10,000 N load spread over 0.01 m² produces 1 MPa (megapascal) of stress. Structural steel yields at around 250 MPa and fractures near 400–500 MPa. Engineers design bridges and buildings to keep stresses well below material yield points, with safety factors typically of 1.5–3x. Stress concentration at holes, notches, or cracks can multiply local stress many times above the average.

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